97 4.2L Occasional Rough Idle

I have a 97 4.2L V6... I bought the truck used 2 years back with the engine and transmission rebuilt about 10,000 miles prior. The truck ran great. Probably one of the smoothest 4.2's ive ever driven (and I work at a car shop, ive seen plenty of 4.2's roll through there)

Well about 6 months after I bought the truck I was T-Boned in the truck. Found the identical truck on craigslist with a bad 4.2L in it. Bought it and proceeded to take on the longest project ever, engine swap.

While the engine was out I changed quite a few things on it just because I could crawl all over the engine easily.

3 months of working when I could and a dictionary full of cussing and swearing from myself and my dad (who owns the car shop I work at) it was finished.

Fast forward to last winter (a little over a year of me owning the truck, or engine, however you look at it...) the truck would run fine unless it was cold really cold out. I installed a remote starter on the truck right before winter.

I started the truck with the remote starter waited about 10 mins then went out to a NOT running truck. The remote starter is programmed to run 24 mins before shutting off (I know this I programmed it).

Frustrated I hopped in started it with the key and it chugged and sputtered and idled so rough it the truck was shaking after about 10-15 seconds of that it wound up to normal idle and was fine...

Since last winter the truck has done it probably once a month (its like a female).

Now I am seeking advice because this past Friday I stopped at my house shut off the truck went inside to grab something for a second... came back out hopped in fired it up and then it started sputtering worse then I can ever remember... even misfired about 3 times, it chugged for about 2 mins almost stalling a couple times. Finally revved up to normal idle and off I went. Hasnt done it since but this was the 3rd time in about 3 weeks.

Talked to a couple Ford service write-ups and some Ford mechanics I know they said Plugs and Wires (Unfortunately I can't remember what I put in last time). One of them said take a spray bottle and mist my coil pack and wires and see if it starts into sputtering to see if they have cracks that dew is getting into.

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